Rational Numbers Review

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

How do you plot a point in the coordinate plane?

Back

To plot a point (x, y), start at the origin (0, 0), move x units horizontally (right for positive, left for negative), and then move y units vertically (up for positive, down for negative).

Front

What is the reflected point of (x, y) over the x-axis?

Back

The reflected point of (x, y) over the x-axis is (x, -y).

Front

What is the reflected point of (x, y) over the y-axis?

Back

The reflected point of (x, y) over the y-axis is (-x, y).

Front

What does it mean for a number to be below zero?

Back

A number below zero is a negative number, indicating a value less than zero on the number line.

Front

How do you compare two rational numbers?

Back

To compare two rational numbers, convert them to a common denominator or convert them to decimal form and then compare their values.

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction. For example, | -5 | = 5.

Front

What is the ordered pair for point A if it is located 3 units right and 2 units up from the origin?

Back

The ordered pair for point A is (3, 2).

Front

How do you represent a temperature of 10 degrees above zero?

Back

A temperature of 10 degrees above zero is represented as +10 or simply 10.

Front

What is the inequality symbol for -3/4 compared to -0.8?

Back

The inequality symbol is >, so -3/4 > -0.8.